Warrior displaced as built and fully loaded. The ship had an overall length of, a beam of and a draught of. She was powered by four-cylinder triple-expansion steam engines, driving two shafts, which developed a total of and gave a maximum speed of. The engines were powered by 19 Yarrowwater-tube boilers and six cylindrical boilers. The ship carried a maximum of of coal and an additional of fuel oil that was sprayed on the coal to increase its burn rate. At full capacity, she could steam for at a speed of.
Armament
Her main armament consisted of six BL 9.2-inch Mk X guns in single Mk V turrets; two on the centreline and four in the corners about the funnels. Her secondary armament of four BL 7.5-inch Mk II or Mk V guns in single Mk II turrets was carried amidships, between the wing 9.2-inch guns. Twenty-six Vickers QF 3-pounders were fitted, ten on turret roofs and eight each on the forward and aft superstructures. The last four ships of the cruisers had a secondary armament of turreted 7.5-inch guns rather than the guns in casemates of the first two ships; these latter four were sometimes referred to as the Warrior class. Because of the extra topweight of the turrets in comparison to their half-sisters their stability was reduced which made them very good seaboats and steady gun platforms. The ship also mounted three submerged 17.7-inch torpedo tubes, one of which was mounted in the stern.
Service
Warrior was ordered as part of the 1903–04 naval construction programme as the first of four armoured cruisers. She was laid down on 5 November 1903 at Pembroke Dockyard, launched on 25 November 1905 and completed on 12 December 1906. On completion, Warrior was assigned to the 5th Cruiser Squadron in the Channel Fleet until 1909, when she was transferred to the 2nd Cruiser Squadron. On 15 September 1909 one of Warriors boiler tubes failed during firing practice, and she was repaired at Devonport Dockyard. In 1913 the ship was transferred to the 1st Cruiser Squadron of the Mediterranean Fleet. She was involved in the pursuit of the German battlecruiser Goeben and light cruiser Breslau at the outbreak of World War I, but was ordered not to engage them. Warrior participated in the Allied sweep which led to the sinking of the Austro-Hungarian light cruiser during the Battle of Antivari in August 1914. A few days later she was ordered to Suez to defend the Suez Canal against any Turkish attack and remained there until 6 November when she was ordered to Gibraltar to join a squadron of French and British ship to search for German warships still at sea off the African coast. This was cancelled on 19 November after the location of the German East Asia Squadron was revealed by survivors of the Battle of Coronel. Warrior joined the Grand Fleet in December 1914 and was assigned to the 1st Cruiser Squadron under Rear-Admiral Sir Robert Keith Arbuthnot. At the Battle of Jutland on 31 May 1916, the 1st Cruiser Squadron was in front of the Grand Fleet, on the right side. At 5:47 p.m., the squadron flagship,, and Warrior spotted the German II Scouting Group and opened fire. Their shells felt short and the two ships turned to port in pursuit, cutting in front of the battlecruiser, which was forced to turn away to avoid a collision. Shortly afterwards they spotted the disabled German light cruiser and closed to engage. When the two ships reached a range of from Wiesbaden they were spotted in turn at 6:05 by the German battlecruiser and four battleships who were less than away. The fire from the German ships was heavy and Defence blew up at 6:20. Warrior was hit by at least fifteen and six shells, but was saved when the German ships switched their fire to the battleship when its steering jammed and caused Warspite to make two complete circles within sight of much of the High Seas Fleet. Warrior was heavily damaged by the German shells, which caused large fires and heavy flooding, although the engine room crew - of whom only three survived - kept the engines running for long enough to allow her to withdraw to the west. She was taken in tow by the seaplane tender HMS Engadine who took off her surviving crew of 743. She was abandoned in a rising sea at 8:25 a.m. on 1 June when her upper deck was only 4 feet above the water, and subsequently foundered.
Wreck Discovery
On 8 September 2016 Dr Innes McCartney of Bournemouth University announced that he and a team from the Sea War Museum Jutland had discovered the wreck of the Warrior. The wreck was discovered in a search on 24 August 2016. The ship lies completely upside down, at a depth of 80 meters in an area of soft sea bed, up to the level of the upper deck. The ship appears to be largely intact, with no sign of the illegal metal salvage that has occurred on other Jutland wrecks. Warrior is the last of the 25 ships sunk at the Battle of Jutland to be located. There are concerns that the wreck may be exploited by illegal metal scavengers, despite the wreck being protected by the Protection of Military Remains Act 1986.
